/Engine/Source/Runtime/Engine/Classes/Engine/NetworkObjectList.h
Marks this object as dormant for the passed in connection
void MarkDormant ( [AActor](API\Runtime\Engine\GameFramework\AActor) *const Actor, [UNetConnection](API\Runtime\Engine\Engine\UNetConnection) *const Connection, const int32 NumConnections, [UNetDriver](API\Runtime\Engine\Engine\UNetDriver) * NetDriver )